The independent heating and cooling company across Hampton Roads and coastal Virginia
Furnace Installation in Annandale, VA — Book a Visit Today
A furnace that needs a repair every winter and rattles the whole house when it starts is close to the end of a useful life. We do furnace installation in Annandale, sizing the replacement to your actual heat loss instead of copying the nameplate on the old unit, because too much capacity means short cycles and uneven rooms. We check the flue, the gas piping and the return air path as part of the quote, since a new furnace pushed through undersized ducts will disappoint you. Call us with the details of your current system, or send the quote form and we will follow up.
Call (888) 381-2953- A real person answers
- Open 7 days
- Written quote before work starts
Taking calls until 5:00 PM ET
Common furnace installation faults in Annandale homes
- The furnace runs all evening and the house still feels cold Undersized or failing unit, duct losses, or a heat exchanger past its life
- It kicks on, runs two minutes, shuts off, then does it again Short cycling from overheating limits, a bad control board, or poor sizing
- We keep paying for repairs and the parts are getting hard to find Aged furnace with discontinued components, replacement usually costs less over time
- There is rust and water sitting under the furnace in the crawlspace Condensate or flue corrosion, common where the water table sits high
- Upstairs bedrooms never get warm but the hallway is roasting Duct design and airflow distribution, addressed during a replacement
People call this furnace installation, furnace replacement or heater installation. Same visit, same written quote, same technician.
Annandale coverage
From Annandale we also cover Falls Church, Fairfax, Vienna, Springfield, Burke, Alexandria, Merrifield and Bailey's Crossroads.
Other repairs we do in Annandale
- AC Repair
- Furnace Repair
- Heat Pump Repair
- AC Installation
- Ductwork Repair
- HVAC Maintenance
- Duct Cleaning
- Thermostat Installation
- Mini-Split Repair
- Indoor Air Quality
Furnace Installation in cities near Annandale
- Furnace Installation in Springfield
- furnace installation for Burke homes
- Furnace Installation — Fairfax, VA
Furnace Installation service hub → · Annandale service directory →
Guides & troubleshooting
How we compare to other HVAC companies in Annandale
| Temple Heating & Air | Big-box repair chains | Handyman listings | |
|---|---|---|---|
| Written quote before any work | ✓ | ✕ | ✕ |
| Live answer seven days a week | ✓ | ✕ | ✓ |
| Every major brand, gas or electric | ✓ | ✓ | ✕ |
| Independent, no manufacturer quotas | ✓ | ✕ | ✓ |
| Local techs who know the housing stock | ✓ | ✕ | ✓ |
What every visit includes
The quote comes first, in writing
Covering 147 cities across Washington DC, Delaware, Maryland and 5 more.Phones answered by people
Open 7 days, 8:00 AM to 5:00 PM ET.All major brands serviced
Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.Furnace Installation in Annandale — quick answers
How do I know whether to repair or replace my furnace?
We look at the age, the failed part, and how many repairs you have already paid for. A cracked heat exchanger or a repair approaching the cost of a new unit usually points to replacement. We give you both numbers and let you choose.
How long does a furnace installation take?
Most straight swaps take a single day. If the flue, gas line, condensate routing or ductwork needs work, or if the furnace sits in a tight crawlspace or attic, plan on two days. We tell you which one before we start.
Do I need new ductwork with a new furnace?
Not always, but we check. Undersized returns and leaky duct runs make a new furnace behave like an old one. We measure static pressure and inspect the runs, then tell you what needs sealing or resizing and what can stay.
Is a high-efficiency furnace worth the upgrade?
It depends on how long you plan to stay and how the house is built. High-efficiency models need a condensate drain and different venting, which adds install work. We walk through what that means for your house before you decide.
How soon can you get to my house in Annandale?
Call us and we will give you a real window rather than a guess. Same-day visits are often possible in Annandale, though the first hot stretch in July and the first hard freeze both fill the schedule quickly. If your heat is out in freezing weather or someone in the home is medically vulnerable, say so when you call and we will move you up. If you smell gas, leave the house first, call 911 or the gas utility, then call us.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form. We ask what changed, when it started, and what the thermostat reads against the actual room temperature. That short conversation tells us what parts to load on the truck.
- Step 2
We diagnose on site
A technician checks the thermostat, the electrical side, airflow through the filter and coil, refrigerant behaviour and the outdoor unit. You get a plain explanation of what failed and why, before any work starts.
- Step 3
Repair and verify
We make the repair, then run the system through a full cycle and measure temperatures at the supply and return. If something upstream caused the failure, we tell you so it does not repeat.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- We know salt airCoastal homes lose condenser coils to salt corrosion years before inland systems do. We look for fin damage and pitted line sets on every visit, because a clean-looking unit can still be shedding capacity from the outside in.
- Humidity is part of the jobHurricane-season air loads a system in ways a temperature reading will not show. If your house feels clammy at 74 degrees, we look at run times, airflow and drainage rather than just adding refrigerant and leaving.
- Crawlspace realitiesHigh water tables mean wet ground under ductwork, rusted plenums and condensate lines with nowhere good to drain. We check what is happening under the floor, since that is often where comfort problems actually begin.
- Straight answersWe tell you what failed, what it will take to fix, and whether a repair makes sense on an older system. No pressure to replace something that has honest years left in it, and no vague diagnosis.
- All major brands, gas & electricIndependent service on Carrier, Trane, Lennox, Goodman, York and the rest.
- Straight answersWhen a replacement beats a repair, we tell you, sometimes before we roll a truck.
Furnace Installation in Annandale
Each broken day has a price tag
Describe the fault, approve the written quote, get it fixed. Starting takes about a minute.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →